Hose-coupling for pneumatic tires.



PATENTED JUNE 16,1903'.

o.. G. ESHBLMAN; HOSB-GOUPLING FOR PNEUMATIC TIRES.

APPLICATION FILED MAB. 6, 1902.

I0 MODEL.

@mob/4449045 w: Ncnms trans oo. maremma., wAswNsToN. n4 cv UNITED STATES Patented June 16, 1903.

Firmen.

CHARLES G. vESI-IELIVIAN, OF READING, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO EDWIN S. YOUSE, OF READING, PENNSYLVANIA.

HOSE-COUPLING FOR PNEUMATIG TIRES.

SPECIFICATION forming part of Letters Patent No. 731,348, dated J' une 16, 1903.

Application filed March 6, 1902. i

To 'all whom it may concern:

Be it known that I, CHARLES G. ESHELMAN, a citizen of the United States of America, and Va resident of` Reading, in the county of Berks and State of' Pennsylvania, have invented certain new and useful Improvements in Hose- Oouplings for Pneumatic Tires, of which the followingr is a specification.

My invention relates to an improved coupro ling designed particularly for connecting an air-pump to the air-valve of a pneumatic tire `for the purpose of infiating the latter.

The invention consists in providing a twopart sleeve adapted to engage and draw tor 5 gether the flanged end of the air-barrel and the screw threaded stem of the airvalve against an interposed joint-washer, which is normally held loosely in a chamber provided therefor in said two-part sleeve, as is fully zo described in connection with the accompanying drawings and particularly pointed out in the claim.

Figures l and 2 are similar longitudinal section views of two slightly-different embodiments of my invention.

A represents the air-barrel, to which the pump-hose is connected and which is formed with the flange or collar a and a small bore a', extending its full length; The coupling- 3o sleeve is formed in two sections, which are screwed together rigidly, so as to form when in use a single piece loosely inclosing and` projecting beyond the flanged end of the airbarrel and provided with an inner chamber h to receiveloosely both said flanged end and a washer C and with a central screw-threaded opening ZJ to said chamber h of greater diameter than the bore a of the air-barrel. The opening in the washer O is smaller than 4o said opening b" and corresponds with this bore o.' of the barrel, and the washer is loosely located in the chamber h, formed by the union of the two parts of the sleeve, so that the latter may be turned as a whole upon the air-barrel independently of the washer. This movement of the sleeve is required in effecting the coupling with the stem D of' the airvalve, which latter may be of any ordinary type, screw-threaded exteriorly to engage the 5o screw-threaded opening b of the sleeve. As

the sleeve is thus screwed upon the valve- Serial No. 96,874. (No model.)

stem D the end of' the latter is forcibly seated against the washer around the central perforation in the latter, thus pressing the washer against the flanged eud of the air-barrel and insuring a perfectly tight joint between the latter and the stem of the air-valve.

In the construction shown in Fig. 1 the washer-chamber is formed in the cap part or section B of the sleeve, which extends over 6o the ilanged end a of the air-barrel and is screwed upon the other section B', which latter incloses the body of the air-barrel below the liange a, and is firmly seated against a shoulder b2 on said section B', so as to rigidly 65 unite the two sections, while in Fig. 2 the arrangement is merely reversed, the section B being extended beyond the flanged end of' the air-barrel, so as to form the washer-chamber h, and being screwed upon the section B to 7oV rigidly unite the two. In either case the results are the same, the former construction, however,permitting' the screw-threaded opening b to be reduced in length, so as to enable the union to be properly made to a very short valve stem and with fewer turns of the sleeve. In either case the chamber Z2 is provided with an interior shoulder h3 to engage the flange a of the air-barrel and with a similar shoulder o, which limits the movement of 8o than the opening in said washer, substantially as set forth.

Signed at Reading, Pennsylvania, this lst day of March, 1902.

CHARLES G. ESHELMAN. Witnesses:

D. M. STEWART, W. G. STEWART. 

